README

Modular e-commerce domain packages for Laravel 12+.

Installation

composer require jelte-ten-holt/in-other-shops

Service providers are auto-discovered via Laravel's package discovery.

Domains

Each domain under src/ has its own service provider, migrations, config, contracts, and concerns. This is a modular monolith — one package with clean internal domain boundaries — not a staging ground for per-domain packages. See CLAUDE.md for the four-tier structure (generic leaves / middle band / shop core / integration) and the extraction policy.

Grouped by tier (see CLAUDE.md for what the tiers mean).

Tier	Domain	Purpose	Dependencies
Leaf	Currency	Currency enum, formatting, config	—
Leaf	Translation	Polymorphic translations table, locale management	—
Leaf	Location	Address management (polymorphic)	—
Leaf	Media	File attachments via morphToMany pivot	—
Leaf	Logging	Domain event logging with pluggable handlers	—
Leaf	FlowChain	Orchestrated multi-step business processes	—
Leaf	Support	Shared kernel: base service provider, Filament bases, state transitions	Currency
Middle	Pricing	Prices, price lists, vouchers	Currency
Middle	Taxonomy	Categories (hierarchical) and tags (flat, typed)	Translation, Media
Middle	Payment	Gateway-agnostic payments, refunds, webhooks	Currency
Middle	Tax	VAT rates and calculation	Location
Middle	Inventory	Stock tracking, reservations, audit ledger	(Translation — drift)
Shop core	Commerce	Cart, Order, Customer lifecycle	Currency, Location, Payment, Pricing, Shipping, Tax, FlowChain, Inventory
Shop core	Shipping	Shipment model, shipping cost calculation	Currency, Location, Commerce (cycle — accepted)
Shop core	Purchasing	Inbound inventory / purchase orders	Inventory, Tax
Integration	Storefront	Read-only API layer for browsable catalog	Currency, Inventory, Media, Pricing, Taxonomy, Translation
Integration	Variants	Product options/values and purchasable variants	Commerce, Inventory, Media, Pricing, Translation
Integration	Agent	MCP Streamable HTTP endpoint (bearer or OAuth 2.1 + DCR)	Commerce, Inventory, Storefront, Taxonomy
Planned	Navigation	Configurable menus	—

Usage

Project models opt into domain capabilities by implementing contracts and using traits:

use InOtherShops\Pricing\Contracts\HasPrices;
use InOtherShops\Pricing\Concerns\InteractsWithPrices;
use InOtherShops\Media\Contracts\HasMedia;
use InOtherShops\Media\Concerns\InteractsWithMedia;

class Product extends Model implements HasPrices, HasMedia
{
    use InteractsWithPrices;
    use InteractsWithMedia;
}

Each domain ships config with a models key for overriding model classes via the registry pattern. Publish config to customize:

// config/pricing.php
return [
    'models' => [
        'price' => App\Models\CustomPrice::class,
    ],
];

Extraction Policy

This package is a modular monolith, not a set of packages-in-waiting. Extraction is on-demand and leaf-only: split a generic leaf (Currency, Logging, Media, Translation, Location, FlowChain, Support) into its own lower-level Composer package only when a concrete non-shop consumer needs it without the rest of the shop. The middle band, shop core, and integration tier are not extraction targets — the shop core (Commerce/Shipping/Purchasing) moves as one unit if it ever moves at all.

Don't split speculatively. The migrations-run-in-every-consumer cost that used to motivate splitting is handled by the per-domain {domain}.migrations.enabled config gate, not by extraction.

If a leaf extraction ever happens: move the directory to its own repo, give it a composer.json with the InOtherShops\{Domain}\ PSR-4 namespace and its (leaf-only) dependencies as require entries, and depend on the new package here. Note that Logging is consumed by nearly every domain, so it would need to publish first.

License

MIT

jelte-ten-holt / in-other-shops

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